A steel scab connection joint

Abstract

The utility model discloses a kind of steel mortise connecting nodes, belong to prefabricated building technical field, including two matching joint connections first embedded part and second embedded part;First embedded part, be configured with first vertical plate and first horizontal plate in inverted T shape connection;Second embedded part, be configured with second vertical plate and second horizontal plate that second vertical plate bottom end is outwardly stretched and fixedly connected in several type notches, several outwardly stretched dowels are provided on the two sides of second vertical plate side surface;First vertical plate matching insertion and fixedly connected in the several type notches of second vertical plate, and first horizontal plate and second horizontal plate are overlap fixedly connected between.Between the steel mortise connecting node provided by the utility model, node structure whole stability is good, compact structure, assembly is convenient and good safety.

Description

Technical Field

[0001] This utility model belongs to the field of prefabricated building technology, specifically relating to a steel tongue and groove connection node. Background Technology

[0002] In the promotion of prefabricated modular buildings, component connection technology has consistently been one of the key bottlenecks restricting its development. This not only affects the comprehensive promotion of building industrialization technology but also directly impacts the overall cost and construction quality of projects. Currently, component connection technology in prefabricated modular buildings faces many pressing problems that need to be solved. For example, it suffers from high costs, low safety, low overall rigidity, susceptibility to damage, high requirements for construction measures, and high construction costs. Utility Model Content

[0003] The purpose of this utility model is to overcome the shortcomings of the existing technology and provide a steel tongue and groove connection node with good overall stability, compact structure, convenient assembly and good safety.

[0004] To achieve the above objectives, the present invention is implemented using the following technical solution.

[0005] This utility model provides a steel tongue and groove connection node, including two matching and overlapping first embedded parts and second embedded parts; The first embedded part is equipped with a first vertical plate and a first horizontal plate connected in an inverted T shape; The second embedded part is equipped with a second vertical plate with a groove of several shapes and a second horizontal plate that extends outward from the bottom end of the second vertical plate and is fixedly connected. Several outwardly extending studs are provided on the two sides of the second vertical plate. The first vertical plate is inserted into and fixedly connected to the groove of the second vertical plate, and the first horizontal plate and the second horizontal plate are overlapped and fixedly connected.

[0006] Furthermore, the cross-section of the second vertical plate is in the shape of a multi-slot, and the opening direction of the multi-slot faces and matches the first vertical plate of the first embedded part. The second horizontal plate has a notch that matches the groove, and is fixedly connected to the bottom end of the groove of the second vertical plate through the notch; A baffle is provided at the top of the second vertical plate and near the opening of the slot.

[0007] Furthermore, the second horizontal plate has an outwardly extending extension on the side opposite to the first embedded part, which is used to fix and connect with the steel bars in the beam and column during pre-embedding.

[0008] Furthermore, the first vertical plate and the first horizontal plate are respectively provided with a plurality of first through holes, and the second vertical plate and the second horizontal plate are respectively provided with a plurality of second through holes that match the first through holes, and the second through holes on the second vertical plate located on both sides of the groove correspond one to one with each other. The first vertical plate and the second vertical plate, and the first horizontal plate and the second horizontal plate are respectively connected together by a number of bolts passing through the first through hole and the second through hole.

[0009] Furthermore, the second through hole of the second horizontal plate is coaxially fixedly connected to a structural cap that extends outward, has internal threads, and is closed at its free end.

[0010] Furthermore, the second through hole of the second vertical plate is coaxially fixedly connected to a bolt sleeve that extends outward and is used for inserting bolts.

[0011] Furthermore, the first embedded part is also equipped with an anchor plate and several anchor bars; one side of the anchor plate is fixedly connected to one end face of the first vertical plate and the first horizontal plate connected in an inverted T shape, and several parallel anchor bars are fixedly provided on the other side of the anchor plate.

[0012] Furthermore, the first embedded part is also equipped with an anchor plate and at least one steel plate; one side of the anchor plate is fixedly connected to one end face of the first vertical plate and the first horizontal plate connected in an inverted T shape, and at least one steel plate is fixedly provided on the other side of the anchor plate, and the steel plate is arranged parallel or perpendicular to the first vertical plate.

[0013] Furthermore, the first embedded part is also equipped with a steel frame, which includes two steel plates connected to each other in a cross-shaped structure. The side end of one steel plate of the steel frame is fixedly connected to the side end face of the first vertical plate of the first embedded part, and the side end of the other steel plate is fixedly connected to the side end face of the first horizontal plate.

[0014] Furthermore, the first through hole is an oblong hole, and the second through hole is a round hole.

[0015] Compared with the prior art, the beneficial effects achieved by this utility model are as follows: The steel tongue and groove connection node provided by this utility model adopts two matching and overlapping pre-embedded parts. The first vertical plate is matched, inserted and fixedly connected to the groove of the second vertical plate. The first horizontal plate and the second horizontal plate overlap and achieve a fixed connection. The strength of the entire connection structure is continuous, the structural stability is good, and the assembly is convenient. The prefabricated dry connection is simple and quick to construct, greatly shortening the construction cycle and improving the construction efficiency. By setting studs and bolt sleeves on the second vertical plate and setting protruding structural caps on the second horizontal plate, the pre-embedded parts can achieve a stable fixed connection, improving the structural rigidity. The studs, bolt sleeves, and structural caps are pre-embedded in the beam and column and interact to form and play a role in resisting shear and tensile forces, which further improves the connection stability and connection strength of the node connection structure. Attached Figure Description

[0016] Figure 1 This is a three-dimensional schematic diagram of a steel tongue and groove connection node provided according to an embodiment of the present utility model.

[0017] Figure 2 This is a cross-sectional view of a steel tongue and groove connection node provided according to an embodiment of the present utility model.

[0018] Figure 3 This is a cross-sectional view of a steel tongue and groove connection node provided according to an embodiment of the present utility model.

[0019] Figure 4 This is a three-dimensional schematic diagram of a first embedded part provided according to an embodiment of the present utility model.

[0020] Figure 5 This is a cross-sectional view of a first embedded part provided according to an embodiment of the present utility model.

[0021] Figure 6 This is a cross-sectional view of a first embedded part provided according to an embodiment of the present utility model.

[0022] Figure 7 This is a three-dimensional schematic diagram of a second embedded part provided according to an embodiment of the present utility model.

[0023] Figure 8 This is a cross-sectional view of a second embedded part provided according to an embodiment of the present utility model.

[0024] Figure 9 This is a top view of a second embedded part provided according to an embodiment of the present utility model.

[0025] In the diagram: 1. First embedded part; 2. Second embedded part; 3. First vertical plate; 4. First horizontal plate; 5. First through hole; 6. Anchor plate; 7. Anchor bar; 8. Steel plate; 9. Second vertical plate; 10. Second horizontal plate; 11. Z-shaped groove; 12. Stud; 13. Second through hole; 14. Bolt sleeve; 15. Structural cap; 16. Extension; 17. Baffle; 18. Bolt; 19. Reinforcing bar; 21. Structural beam; 22. Structural column. Detailed Implementation

[0026] The present invention will be further described below with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and should not be used to limit the scope of protection of the present invention.

[0027] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0028] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0029] like Figures 1-3As shown, this embodiment of the utility model provides a steel tongue and groove joint connection structure, including two matching and overlapping first embedded parts 1 and second embedded parts 2. The first embedded part 1 is equipped with a first vertical plate 3 and a first horizontal plate 4 connected in an inverted T shape. The second embedded part 2 is equipped with a second vertical plate 9 with a hexagonal groove 11 and a second horizontal plate 10 extending outward from the bottom end of the second vertical plate 9 and fixedly connected. The first vertical plate 3 is matched, inserted into and fixedly connected to the hexagonal groove 11 of the second vertical plate 9, and the first horizontal plate 4 and the second horizontal plate 10 are overlapped and fixedly connected.

[0030] The first embedded part 1 and the second embedded part 2 are respectively embedded and anchored in the two beams and / or columns to be connected. The first embedded part 1 can be embedded and anchored in various beam-column structures such as precast concrete composite beams, I-beams, concrete columns, and steel-concrete composite columns, and the second embedded part 2 can be embedded and anchored in various beam-column structures such as precast concrete composite beams.

[0031] In some embodiments, Figures 4-6 As shown, the first embedded part 1 is equipped with a first vertical plate 3 and a first horizontal plate 4 connected in an inverted T shape. The surface of the first vertical plate 3 is arranged along the docking direction between the first embedded part 1 and the second embedded part 2, and a plurality of first through holes 5 are opened on the first vertical plate 3, which match the second through holes 13 on the second vertical plate 9 of the second embedded part 2, for passing bolts through to achieve a fastening connection.

[0032] The first horizontal plate 4 also has several first through holes 5, which match the second through holes 13 on the second horizontal plate 10 of the second embedded part 2, for inserting bolts to achieve a fastening connection.

[0033] In this embodiment, the first through hole 5 can be an elongated hole, which facilitates matching and alignment with the second through hole 13 and adjustment of the position of the through bolt, making the operation convenient.

[0034] When the first embedded part 1 is embedded and anchored to a beam-column structure, a multi-embedded anchorage connection method can be adopted. When embedded and anchored to a precast concrete composite beam or concrete column, the first embedded part 1 is also equipped with an anchor plate 6 and several anchor bars 7. Figure 5 , Figure 7 and Figure 9 As shown. One side of the anchor plate 6 is fixedly connected to the side ends of the first vertical plate 3 and the first horizontal plate 4, for example, by welding. Several parallel, spaced anchor bars 7 are fixedly connected to the other side of the anchor plate 6. The ends of the anchor bars 7 are equipped with hooks; alternatively, straight anchors can also be used.

[0035] When pre-embedded and anchored to I-beams or steel-concrete composite columns, the first embedded part 1 is also equipped with a steel plate 8 pre-embedded and anchored within the beam or column. The steel plate 8 is welded and fixed to the steel or steel plate 8 within the beam or column. In this embodiment, the steel plate 8 can be fixedly welded to the side end face of the first vertical plate 3 and / or the first horizontal plate 4, or integrally formed, and the steel plate 8 can adopt various structural shapes, for example, two steel plates 8 can form a cross-shaped structure.

[0036] In some embodiments, the first embedded part 1 is further provided with an anchor plate 6 and a plurality of anchor bars 7; one side of the anchor plate 6 is fixedly connected to one end face of the first vertical plate 3 and the first horizontal plate 4 which are connected in an inverted T shape, and a plurality of mutually parallel anchor bars 7 are fixedly provided on the other side of the anchor plate 6.

[0037] In some embodiments, the first embedded part 1 is further provided with an anchor plate 6 and at least one steel plate 8; one side of the anchor plate 6 is fixedly connected to one end face of the first vertical plate 3 and the first horizontal plate 4 which are connected in an inverted T shape, and at least one steel plate 8 is fixedly provided on the other side of the anchor plate 6, and the steel plate 8 is arranged parallel or perpendicular to the first vertical plate 3.

[0038] In some embodiments, the first embedded part 1 is further provided with a steel frame, the steel frame including two steel plates 8 connected to each other in a cross-shaped structure, one side end of one steel plate 8 of the steel frame is fixedly connected to the side end face of the first vertical plate 3 of the first embedded part 1, and the other side end of the steel plate 8 is fixedly connected to the side end face of the first horizontal plate 4.

[0039] In some embodiments, the top end of the first vertical plate 3 near the second vertical plate 9 is inclined at an angle to facilitate insertion of the second vertical plate 9 into the second embedded part 2.

[0040] In some embodiments, such as Figures 7-9 As shown, the second embedded part 2 is equipped with a second vertical plate 9 with a zigzag groove and a second horizontal plate 10 extending outward from the bottom end of the second vertical plate 9 and fixedly connected.

[0041] The second vertical plate 9 has a zigzag shape with three sides open and one side closed.

[0042] In this embodiment, the cross-section of the second vertical plate 9 is shaped like a zigzag groove 11, with the opening of the zigzag groove 11 facing the first vertical plate 3 of the first embedded part 1. A baffle 17 is provided at the top of the second vertical plate 9 near the opening of the zigzag groove 11. In this embodiment, the upper end face, lower end face, and side end face facing the first vertical plate 3 of the second vertical plate 9 are all open, while the side end face facing away from the first vertical plate 3 is a closed structure. The cross-section or top view shows a zigzag groove structure.

[0043] A baffle 17 is provided at the opening on the upper end face of the second vertical plate 9 and on the side close to the first vertical plate 3. On the one hand, when the first vertical plate 3 is inserted into the second vertical plate 9, the baffle 17 abuts against the inclined chamfered part at the top of the first vertical plate 3 in the above specific embodiment, and interacts with the inclined surface of the chamfered part to guide the first vertical plate 3 to be quickly inserted into the zigzag slot of the second vertical plate 9. On the other hand, it serves as a limit on the first vertical plate 3 when the first vertical plate 3 is inserted into the zigzag slot 11 of the second vertical plate 9 to prevent the first vertical plate 3 from being displaced or shifted.

[0044] Meanwhile, at the opening on the upper end face of the second vertical plate 9, apart from the baffle 17 part, the remaining openings are used for the pouring of post-poured concrete or bonding material to fill the gap between the two vertical plates, thereby enhancing the connection stability and rigidity.

[0045] The second vertical plate 9 and the second horizontal plate 10 are respectively provided with a plurality of second through holes 13 that match the first through holes 5, and the second through holes 13 on both sides of the slot 11 on the second vertical plate 9 correspond one-to-one with each other. For example, the second through holes 13 are round holes for passing bolts. In the connection structure, the first vertical plate 3 and the second vertical plate 9, and the first horizontal plate 4 and the second horizontal plate 10 are respectively connected together by a plurality of bolts passing through the first through holes 5 and the second through holes 13.

[0046] The second through hole 13 of the second vertical plate 9 is coaxially fixedly connected to a bolt sleeve 14 that extends outward and is used for bolt insertion. The bolt sleeves 14 on both sides of the zigzag groove correspond one-to-one, and the outward extension width of the bolt sleeves 14 on both sides matches or is less than the width of the beam and column structure embedded in the second embedded part 2.

[0047] Both sides of the second vertical plate 9 are provided with several outwardly extending studs 12, which are evenly spaced along at least one straight line.

[0048] In some specific embodiments, preferably, the plurality of studs 12 and the bolt sleeves 14 are not located on the same straight line and are staggered and spaced apart, which can achieve better shear and tensile resistance, more stable stress, and more reliable structural strength.

[0049] The second through hole 13 of the second horizontal plate 10 is coaxially fixedly connected to a structural cap 15 that extends outward, has internal threads, and is closed at its free end. In the connection structure, the bolt passes through the elongated hole (first through hole 5) of the first horizontal plate 4 and the circular hole (second through hole 13) of the second horizontal plate 10 in sequence, and then enters the structural cap 15. The external thread of the bolt is screwed into the internal thread of the structural cap 15 to achieve a tight connection.

[0050] By setting studs 12 and bolt sleeves 14 on the second vertical plate 9, and setting protruding structural caps 15 on the second horizontal plate 10, a stable fixed connection can be achieved between the first embedded part 1 and the second embedded part 2, thereby improving rigidity. Furthermore, the studs 12, bolt sleeves 14, and structural caps 15 are pre-embedded in the beam and column and interact with each other to form and play a role in resisting shear and tensile forces, thus better improving the connection stability and connection strength of the node connection structure.

[0051] In addition, an outwardly extending extension 16 is provided on the side of the second horizontal plate 10 away from the first embedded part 1, which is used to fix and weld with the bottom steel bar inside the beam and column during the pre-embedding process for preliminary positioning and fixed connection.

[0052] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A steel tongue and groove joint, characterized in that, Includes a first embedded part and a second embedded part that match and overlap; The first embedded part is equipped with a first vertical plate and a first horizontal plate connected in an inverted T shape; The second embedded part is equipped with a second vertical plate with a groove of several shapes and a second horizontal plate that extends outward from the bottom end of the second vertical plate and is fixedly connected. Several outwardly extending studs are provided on the two sides of the second vertical plate. The first vertical plate is inserted into and fixedly connected to the groove of the second vertical plate, and the first horizontal plate and the second horizontal plate are overlapped and fixedly connected.

2. The steel tongue and groove connection node according to claim 1, characterized in that, The cross-section of the second vertical plate is in the shape of a zigzag groove, and the opening direction of the zigzag groove is oriented towards and matches the first vertical plate of the first embedded part; The second horizontal plate has a notch that matches the groove, and is fixedly connected to the bottom end of the groove of the second vertical plate through the notch; A baffle is provided at the top of the second vertical plate and near the opening of the slot.

3. The steel tongue and groove connection node according to claim 1, characterized in that, The second horizontal plate has an outwardly extending extension on the side opposite to the first embedded part, which is used to fix and connect with the steel bars in the beam and column during the pre-embedding process.

4. The steel tongue and groove connection node according to claim 1, characterized in that, The first vertical plate and the first horizontal plate are respectively provided with a plurality of first through holes, and the second vertical plate and the second horizontal plate are respectively provided with a plurality of second through holes that match the first through holes, and the second through holes on the second vertical plate located on both sides of the groove correspond one to one with each other. The first vertical plate and the second vertical plate, and the first horizontal plate and the second horizontal plate are respectively connected together by a number of bolts passing through the first through hole and the second through hole.

5. The steel tongue and groove connection node according to claim 4, characterized in that, The second through hole of the second horizontal plate is coaxially fixedly connected to a structural cap that extends outward, has internal threads, and is closed at the free end.

6. The steel tongue and groove connection node according to claim 5, characterized in that, The second through hole of the second vertical plate is coaxially fixedly connected to a bolt sleeve that extends outward and is used to pass through a bolt.

7. The steel tongue and groove connection node according to claim 1, characterized in that, The first embedded part is also equipped with an anchor plate and several anchor bars; one side of the anchor plate is fixedly connected to one end face of the first vertical plate and the first horizontal plate connected in an inverted T shape, and several parallel anchor bars are fixedly provided on the other side of the anchor plate.

8. The steel tongue and groove connection node according to claim 1, characterized in that, The first embedded part is also equipped with an anchor plate and at least one steel plate; one side of the anchor plate is fixedly connected to one end face of the first vertical plate and the first horizontal plate connected in an inverted T shape, and at least one steel plate is fixedly provided on the other side of the anchor plate, and the steel plate is arranged parallel or perpendicular to the first vertical plate.

9. The steel tongue and groove connection node according to claim 1, characterized in that, The first embedded part is also equipped with a steel frame, which includes two steel plates connected to each other in a cross shape. The side end of one steel plate of the steel frame is fixedly connected to the side end face of the first vertical plate of the first embedded part, and the side end of the other steel plate is fixedly connected to the side end face of the first horizontal plate.

10. The steel tongue and groove connection node according to claim 4, characterized in that, The first through hole is an oblong hole, and the second through hole is a round hole.

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